The PR-4000 rack’s pinholes are 5/8”. It has 1” hole spacing throughout the bench zone and 2” elsewhere for a precise liftoff height. The
PR-5000 has 2” hole spacing throughout with 1” pinholes. On the PR-5000, you can achieve 1” hole spacing on the entire rack with our Lowered J-Cups.
The PR-4000 has an impressive attachment “ecosystem”, but the PR-5000 has more attachment compatibility than any other power rack.
The PR-4000 has laser-cut numbers every five holes making it easy to line up attachments, including J-cups and safeties. The PR-5000 has laser-cut numbers on every hole making it easy to line up attachments.